Improvement in corn-planters



G. W. BROWN. Corn-Planter.

No.'198,760. Patented Jan. I, |878..

N,FE|ERS. PHOTQLITHQGRAPHER, WASHINGTON4 D. C.

To all whom it may concern:

. each hopper, geared to each have simultaneous movements.

UNITED-STATES PATENT OEEIOE.

GEORGE "w. BROWN, oF cALEsBUEc, ILLINoIs.

IM PROyEMEN'l IN CO RNPLA NTE RS.

l Specification forming part of Letters Patent No.`l98,-760, dated January 1, 1878 `application led i .lilly 28, 1877. i

Be it known that I, GEORGE W. BROWN, of Galesburg, Knox county, Illinois, have inventedcertain new and useful Improvements in Corn-Planters 5 and I do hereby declare that the following is a full', clear, and exact descrip-` tion thereof, which will enable others skilled in the art to which it appertains tomake and use the same, reference being had tothe accompanying drawings, marked thereon, which form a part of this specitication,.in which- Figure l isa top-plan view of the interior of acorn-planter'seedhox, with the cap or cover for the seed-slides and the 'cut-offs removed, and the cogs partly removed from the seed` slides to show the operation of the parts. Fig.

2 is a similar View to Fig. l., showing the parts posi` in different relative positions from. the tions shown at Fig. l. Fig. 3 is a top-plan view, showing the parts in Adifferent relative positions from Figs. 1V and 2. Fig. 4 isa sectional view in the line ,r .r in Fig. 1. Fig. 5 is a sectional view in the line y y in Fig. 1.

T-he same letter designates the same part in each view in the drawings. t A In corn-planters heretofore employing rotary seed-cup plates, single plates'have been used, and where single plates were provided i with seed cups or passages, each of which was to hold butone grain of corn, and arranged to drop from four or five cups at the same time, an impractical size of plate was necessitated.

. One object of this invention is to overcome this difficulty 5 and to this end the invention consists in the use of two seed-cup plates in other, so as to The -mechanism heretofore employed for actuating rotary seed-cup plates in corirplanters has consisted of a bifurcated bar, which was Inore or less liable to derangement from the frequent turning and twisting of the seedboxes and the frame which carried them when in use.

Another object of this invention is to impart an intermittent rotary motion to the seedcup plates by means of devices located at one side of said plates; and to this end the invention consists in the combination of an actu- 'the one, C, provided with a series I seed cups or passages, c, and the other, C', prorating-bar with. dual seed-cup plates, geared to each other, so arranged that said actuating bar will act on the plates alternately, to im'- part to them simultaneous intermittent rotary motion.

The invention further consists in combina tions of special devices and details of construeT tion, hereinafter fully described, and set forth yin the claims hereto annexed; and to letters of reference Referrin g to the drawings by letters, A repl resents a seedbox of any ordinarycornplanting machine. B is the reciprocating bar by means of which the seed-cup plates are operated.' C C are circular disks or seed-cup plates, of single vided with a series of dual seed cups or passages, c c.- The disks or'seed-cup plates C C are Veach j ournaled, by an axial stud, cf, or otherwise, in the bottom of the seed-box A, and

. have their edges formed into teeth c, by means of which they are geared each with theother, so as to have simultaneous movements, and so thatwhen any two of the holesrc in the seedcup plate C( coincide with the opening D in the bottom of the seed-box one of thepassages c in the seedfcup plate C will coincide `with a similar adjacent opening, D, both of -which openings D D communicate with the throat of the tube which conducts the -seed to the ground. Y I

The seed-cup plates C C are preferablymade of thin metal where the passages c c are located, and seated on cylindrical elevations E from the bottom of the box A.

Each disk or plate C and C has a series of cam-shaped projections, F, projecting downward from its under surface, exterior to the elevations E, formed as shown in the drawings.

lhe end of the bar B is seated in suitable ways in the bottom of the box A, so that it may be reciprocated in close proximity to both disks C C', and has journaled to its upper side two pawls, G G', projecting in opposite directions, and each provided with a spring, g, which presses its free end toward the disks C C. H H are lugs on the bar B, which act as stops, as hereinafter described.

At Fig. l in the drawing the bar B is repreA sented as at the end of its throw made in the direction shownbythe arronr ont-he bar; and in makin g said throw, the sprin g-paWl G, actin g 011 one ofthe cams or projections F, has propelled the seed-cup plate C, and With it the seed-cup plate C', each one-sixth of a revolution, in the respective directions shown by the arrows on each seed-cup plate, and has at the same time brought the stop H into position to rest against a cam, F, on the seed-cup plate G', and thus stop each seed-cup plate with a seed cup or cups coincident With their discharge-openings D D.

In commencing the return movement of the bar B toward the right hand, the stop H Will be Withdrawn from the projection F, and the spring-pawl G brought into action upon a` projection, F, on the seed-cup plate C', thus giving the seed-cup plates C and C another forward impulse in the same direction, as hereinbefore described, and bringing the neXt in succession of the seed-cups c and c cto the discharge-openings D D', Where they are arrested and their momentum prevented from carrying` them farther by the stop H acting on one of the projections F, as shown at Fig. 3. Fig. 2 will illustrate the action of the cams F in allowin g the spring-pawls to pass over them to reach their seats in their rear.

The number of projections F on each seedcup plate should be one-half the number of seed-cups c or c c in the slides G C', respectively, so that reciprocating the bar B longitudinally will give anintermittent rotary motion to the seed-cup plates C C', acting on them alternately, and alternately communicating motion to each directly, and also alternately to each through the instrumentality of the other, and thus bringing the seed-cups in each series c and c' successively over their respective discharges D D.

The seed-cups c c c being small and only receiving a grain of corn each, their arrangement, as shown and described, will discharge three grains at a time.

By using seed-cup plates having more holes in each set of the series a greater number of seeds may be dropped, and by covering the seed-cups in either or both slides in any wellknown manner, any number less than the Whole may be left open for planting in hills, and the discharge diminished until only one is left, in which case, by rapid motion of the seedcup plates, the corn may be drilled, if desired. The cut-off and cap over the seed-cup plates G C may be constructed in any of the Wellknown Ways.

I claim as new- 1. The dual seed-cup plates C C', arranged in the same seed-box, and provided With seedl cups, and geared to each other, so as to have simultaneous movements for simultaneous discharges, substantially as described, and for the purpose specified.

2. In combination with seed-cup plates C C', geared together, a reciprocating bar provided with devices Which, acting on the disks alternately, Will produce intermittent rotary motion of said disks, substantially as and for the purpose specified.

3. In combination With seed-cup plates C C", geared to each other, and provided With projections or cams F, a reciprocating bar, B, having pawls G G', substantially as and for the purpose speciiied.

4. In combination With seed-cup plates C C', geared to each other, andr provided With projections F, a reciprocating bar, B, having spring-pawls lG G and stops H H', substantially as and for the purpose specified.

5. The seed-cup plates C C', journaled on elevations E, and provided with cams F, eX- terior to and projecting downward over the elevation E, substantially as described, and

for the purpose specified.

In testimony that I claim the foregoing as my oWn I affix my signature in presence of two Witnesses.

GEORGE W. BROWN.

Witnesses:

I. S. PERKINS, JAMES E. BROWN. 

